Devices and methods to obtain values usable to verify the geographic location of a device. In at least one embodiment, a device comprises a positioning circuit and a cryptoprocessor. The device obtains geographic coordinates of the device's location, using the positioning circuit. The device stores, in the cryptoprocessor, information indicating the state of the device and the geographic coordinates. The device uses the cryptoprocessor to obtain values usable to validate the geographic location of the device.